A thought for the Rek'Sai nerfs
Since Riot is having a bit of trouble deciding on how to nerf Rek'Sai's Tremor Sense, the idea of making it work only out of combat (5/4.5/4/3.5/3 seconds?) could be a possible approach. (Note: it would be needed to keep monsters from triggering the out of combat mechanic as well as minions) This also would make leveling W feel better because it is currently just a bit more damage.
I'm not too sure how this would feel for the Rek'Sai player (I've only played her a handful of times), but I hope this helps for the nerf to utility Riot is looking for at the moment.